Pieter Colpaert
@pietercolpaert.be
Professor #interoperability and #knowledgegraphs at #Ghent University
Building Linked Data Event Streams #ldes
Personal website: https://pietercolpaert.be
Team website: https://knows.idlab.ugent.be/
Building Linked Data Event Streams #ldes
Personal website: https://pietercolpaert.be
Team website: https://knows.idlab.ugent.be/
Next week we’re hosting the second in-person #LDES workshop at #SEMIC2025.
Piotr Sowiński will be the keynote speaker. He developed Jelly, a binary RDF format for syncing RDF datasets at speeds we can only aspire to.
What is his opinion about the work we’re doing? What can we learn from eachother?
Piotr Sowiński will be the keynote speaker. He developed Jelly, a binary RDF format for syncing RDF datasets at speeds we can only aspire to.
What is his opinion about the work we’re doing? What can we learn from eachother?
November 18, 2025 at 2:47 PM
Next week we’re hosting the second in-person #LDES workshop at #SEMIC2025.
Piotr Sowiński will be the keynote speaker. He developed Jelly, a binary RDF format for syncing RDF datasets at speeds we can only aspire to.
What is his opinion about the work we’re doing? What can we learn from eachother?
Piotr Sowiński will be the keynote speaker. He developed Jelly, a binary RDF format for syncing RDF datasets at speeds we can only aspire to.
What is his opinion about the work we’re doing? What can we learn from eachother?
Oh boy it’s time (again)! My long awaited Pebble arrived!
Quite a remarkable story for a product, that’s now an open source and open hardware project. Follow @ericmigi.com on the topic!
Quite a remarkable story for a product, that’s now an open source and open hardware project. Follow @ericmigi.com on the topic!
November 18, 2025 at 1:15 PM
Oh boy it’s time (again)! My long awaited Pebble arrived!
Quite a remarkable story for a product, that’s now an open source and open hardware project. Follow @ericmigi.com on the topic!
Quite a remarkable story for a product, that’s now an open source and open hardware project. Follow @ericmigi.com on the topic!
In de categorie producten waar ik een grote fan van ben: pizzabol.com
Pizzabol - Because pizza is too good to be bad.
Because pizza is too good to be bad.
pizzabol.com
November 15, 2025 at 4:30 PM
In de categorie producten waar ik een grote fan van ben: pizzabol.com
Toch bizar hoe na al die jaren er amper innovatie is geweest in weerstations voor thuis, en hoe die dingen er verdorie lelijk blijven uitzien.
Iemand een suggestie die er mooier uitziet, liefst met open data/open source/open hardware?
Iemand een suggestie die er mooier uitziet, liefst met open data/open source/open hardware?
November 9, 2025 at 8:47 AM
Toch bizar hoe na al die jaren er amper innovatie is geweest in weerstations voor thuis, en hoe die dingen er verdorie lelijk blijven uitzien.
Iemand een suggestie die er mooier uitziet, liefst met open data/open source/open hardware?
Iemand een suggestie die er mooier uitziet, liefst met open data/open source/open hardware?
Any hardware geeks in my network? This is quite cool 👇
I'm pleased to share the schematic AND Kicad project for Pebble 2 Duo - useful if you are have fun hacking! github.com/coredevices/...
November 4, 2025 at 7:27 PM
Any hardware geeks in my network? This is quite cool 👇
Our Knowledge on Web-Scale team is at #ISWC2025! 🎉
We’re sharing work on link prioritization, time functions in SPARQL, low-code ODRL tools, Trustflows, queryable VCs, client-side federation, plus tutorials on RDF/SPARQL 1.2 and RDF-Connect pipelines.
We’re sharing work on link prioritization, time functions in SPARQL, low-code ODRL tools, Trustflows, queryable VCs, client-side federation, plus tutorials on RDF/SPARQL 1.2 and RDF-Connect pipelines.
November 1, 2025 at 1:33 PM
Our Knowledge on Web-Scale team is at #ISWC2025! 🎉
We’re sharing work on link prioritization, time functions in SPARQL, low-code ODRL tools, Trustflows, queryable VCs, client-side federation, plus tutorials on RDF/SPARQL 1.2 and RDF-Connect pipelines.
We’re sharing work on link prioritization, time functions in SPARQL, low-code ODRL tools, Trustflows, queryable VCs, client-side federation, plus tutorials on RDF/SPARQL 1.2 and RDF-Connect pipelines.
Op zoek naar een locatie in centrum Gent waar je reservatie kan doen om te eten/drinken met 75-tal mensen, waarbij iedere tafel apart afrekent. Patrick Foley‘s geen optie: willen enkel in 1 keer afrekenen.
October 26, 2025 at 9:45 AM
Op zoek naar een locatie in centrum Gent waar je reservatie kan doen om te eten/drinken met 75-tal mensen, waarbij iedere tafel apart afrekent. Patrick Foley‘s geen optie: willen enkel in 1 keer afrekenen.
Sadly there are only 25 hours in a day
October 26, 2025 at 7:34 AM
Sadly there are only 25 hours in a day
Haha! I must confess I also do this
How do people with kids get anything done, ever?
I’m serious, whenever I see someone roughly my age accomplish anything these days, first thing I do is check whether they have kids. Written a book? Cool. Written a book *while having kids*? You’re a GOD.
I’m serious, whenever I see someone roughly my age accomplish anything these days, first thing I do is check whether they have kids. Written a book? Cool. Written a book *while having kids*? You’re a GOD.
October 19, 2025 at 7:31 PM
Haha! I must confess I also do this
Named graphs in #RDF (2014) are still controversial after all this time and I don’t think they should be.
While their semantics were left open, functionally we all use them as contextual assertions anyway. Prove me wrong 🤓
👉 pietercolpaert.be/linkeddata/2...
#linkeddata #knowledgegraphs
While their semantics were left open, functionally we all use them as contextual assertions anyway. Prove me wrong 🤓
👉 pietercolpaert.be/linkeddata/2...
#linkeddata #knowledgegraphs
September 30, 2025 at 10:17 PM
Named graphs in #RDF (2014) are still controversial after all this time and I don’t think they should be.
While their semantics were left open, functionally we all use them as contextual assertions anyway. Prove me wrong 🤓
👉 pietercolpaert.be/linkeddata/2...
#linkeddata #knowledgegraphs
While their semantics were left open, functionally we all use them as contextual assertions anyway. Prove me wrong 🤓
👉 pietercolpaert.be/linkeddata/2...
#linkeddata #knowledgegraphs
the expert group on the Next Generation European Interoperability Framework (EIF) I’m part of is launching a survey to take your ideas into account. Do you have ideas about interoperability governance? Help us out: interoperable-europe.ec.europa.eu/collection/c...
September 16, 2025 at 7:06 AM
the expert group on the Next Generation European Interoperability Framework (EIF) I’m part of is launching a survey to take your ideas into account. Do you have ideas about interoperability governance? Help us out: interoperable-europe.ec.europa.eu/collection/c...
On my way home after a fruitful #semantics2025! During the closing ceremony I had to honour to invite the audience to #semantics2026 in one of the most beautiful cities in the world. See you next year in Ghent!
September 5, 2025 at 7:16 PM
On my way home after a fruitful #semantics2025! During the closing ceremony I had to honour to invite the audience to #semantics2026 in one of the most beautiful cities in the world. See you next year in Ghent!
As Linked Data practitioners we know vocabularies and shapes, but that’s not enough. Full interoperability needs two more artefacts: reusable interaction patterns across domains, and implementation guides to help developers avoid endless choices.
Long read: pietercolpaert.be/interoperabi...
Long read: pietercolpaert.be/interoperabi...
September 3, 2025 at 2:43 PM
As Linked Data practitioners we know vocabularies and shapes, but that’s not enough. Full interoperability needs two more artefacts: reusable interaction patterns across domains, and implementation guides to help developers avoid endless choices.
Long read: pietercolpaert.be/interoperabi...
Long read: pietercolpaert.be/interoperabi...
Tomorrow it’s #semantics2025! Looking fwd to the keynote of Hannah Bast, the developer workshop, the RDF-Connect tutorial, the #sem4tra2025 workshop on semantics in transport, and the next generation data governance workshop! 🚀
September 2, 2025 at 7:20 AM
Tomorrow it’s #semantics2025! Looking fwd to the keynote of Hannah Bast, the developer workshop, the RDF-Connect tutorial, the #sem4tra2025 workshop on semantics in transport, and the next generation data governance workshop! 🚀
Reposted by Pieter Colpaert
Our latest #OpenHPS update enables developers to stream processed (location) data to #Solid using Linked Data Event Streams ( #LDES ). Simply adding a sink to an OpenHPS model is all it takes to enable this in existing positioning systems.
Read more in our blog post ...
openhps.org/posts/2025/0...
Read more in our blog post ...
openhps.org/posts/2025/0...
Stream Location Data to Solid | OpenHPS
OpenHPS is a framework for processing sensor data to create a positioning system. In this blog post, we will demonstrate how OpenHPS can be used to stream location data directly to Solid to offer tran...
openhps.org
April 22, 2025 at 4:12 PM
Our latest #OpenHPS update enables developers to stream processed (location) data to #Solid using Linked Data Event Streams ( #LDES ). Simply adding a sink to an OpenHPS model is all it takes to enable this in existing positioning systems.
Read more in our blog post ...
openhps.org/posts/2025/0...
Read more in our blog post ...
openhps.org/posts/2025/0...
Next week, we’re organizing the RDF-Connect tutorial at @semantics-conf.bsky.social, so today we’re testing out the tutorial at the office and with the partners of our #DiSHACLed project!
👉 rdf-connect.github.io
#semantics2025
👉 rdf-connect.github.io
#semantics2025
August 25, 2025 at 12:58 PM
Next week, we’re organizing the RDF-Connect tutorial at @semantics-conf.bsky.social, so today we’re testing out the tutorial at the office and with the partners of our #DiSHACLed project!
👉 rdf-connect.github.io
#semantics2025
👉 rdf-connect.github.io
#semantics2025
One-off integrations don’t scale. We need higher ambitions as data providers building
1️⃣ within an ecosystem (JSON Schemas, strict API contracts, ...)
2️⃣ across ecosystems (RDF vocabularies, SHACL profiles, reusable API features)
3️⃣ inter-engine (AI agents & logic)
👉 pietercolpaert.be/interoperabi...
1️⃣ within an ecosystem (JSON Schemas, strict API contracts, ...)
2️⃣ across ecosystems (RDF vocabularies, SHACL profiles, reusable API features)
3️⃣ inter-engine (AI agents & logic)
👉 pietercolpaert.be/interoperabi...
August 25, 2025 at 11:32 AM
One-off integrations don’t scale. We need higher ambitions as data providers building
1️⃣ within an ecosystem (JSON Schemas, strict API contracts, ...)
2️⃣ across ecosystems (RDF vocabularies, SHACL profiles, reusable API features)
3️⃣ inter-engine (AI agents & logic)
👉 pietercolpaert.be/interoperabi...
1️⃣ within an ecosystem (JSON Schemas, strict API contracts, ...)
2️⃣ across ecosystems (RDF vocabularies, SHACL profiles, reusable API features)
3️⃣ inter-engine (AI agents & logic)
👉 pietercolpaert.be/interoperabi...
Many data provides believe there are only 2 choices when publishing data: a dump or an API. In this post I explain how dumps lead to a replication hell, while APIs lead to a maintenance hell. We try fighting this status quo with the #SEMIC LDES initiative.
pietercolpaert.be/ldes/2021/09...
pietercolpaert.be/ldes/2021/09...
Escaping the false dichotomy of API vs. data dump with Linked Data Event Streams – Pieter Colpaert
Data publishers often face a familiar but painful choice — should they provide a full data dump or a querying API? With Linked Data Event Streams (LDES), we provide a way out.
pietercolpaert.be
August 25, 2025 at 7:57 AM
Many data provides believe there are only 2 choices when publishing data: a dump or an API. In this post I explain how dumps lead to a replication hell, while APIs lead to a maintenance hell. We try fighting this status quo with the #SEMIC LDES initiative.
pietercolpaert.be/ldes/2021/09...
pietercolpaert.be/ldes/2021/09...
Reposted by Pieter Colpaert
België zou over #ChatControl eens duidelijk in het NEE-kamp kunnen gaan staan, en daar blijven, in plaats van telkens het probleem vooruit te porren en te hopen dat er de onvermijdelijke volgende keer minder ophef rond is.
August 15, 2025 at 12:58 PM
België zou over #ChatControl eens duidelijk in het NEE-kamp kunnen gaan staan, en daar blijven, in plaats van telkens het probleem vooruit te porren en te hopen dat er de onvermijdelijke volgende keer minder ophef rond is.
This guy... Live blogging how he is creating the best smartwatch out there.
Had to recover trademarks, had to ask Google to open-source the original Pebble software, is talking about all the small design details while visiting the production floor in Shenzhen, etc.
ericmigi.com/blog/pebble-...
Had to recover trademarks, had to ask Google to open-source the original Pebble software, is talking about all the small design details while visiting the production floor in Shenzhen, etc.
ericmigi.com/blog/pebble-...
August 14, 2025 at 7:47 AM
This guy... Live blogging how he is creating the best smartwatch out there.
Had to recover trademarks, had to ask Google to open-source the original Pebble software, is talking about all the small design details while visiting the production floor in Shenzhen, etc.
ericmigi.com/blog/pebble-...
Had to recover trademarks, had to ask Google to open-source the original Pebble software, is talking about all the small design details while visiting the production floor in Shenzhen, etc.
ericmigi.com/blog/pebble-...
Recent EFarmz ontdekt en we zijn grote fan!
Maaltijdboxen met goeie recepten die ons en de kinderen blijven verrassen met groentjes zoals groentjes moeten zijn – lokaal en vol smaak www.efarmz.be/nl
Maaltijdboxen met goeie recepten die ons en de kinderen blijven verrassen met groentjes zoals groentjes moeten zijn – lokaal en vol smaak www.efarmz.be/nl
www.efarmz.be
August 8, 2025 at 4:28 PM
Recent EFarmz ontdekt en we zijn grote fan!
Maaltijdboxen met goeie recepten die ons en de kinderen blijven verrassen met groentjes zoals groentjes moeten zijn – lokaal en vol smaak www.efarmz.be/nl
Maaltijdboxen met goeie recepten die ons en de kinderen blijven verrassen met groentjes zoals groentjes moeten zijn – lokaal en vol smaak www.efarmz.be/nl
Reposted by Pieter Colpaert
Please support our research on data ownership, privacy and security in IoT tools by participating in the following survey: vub.fra1.qualtrics.com/jfe/form/SV_...
@wise.vub.ac.be #IoT #survey #VUB
@wise.vub.ac.be #IoT #survey #VUB
July 18, 2025 at 5:48 PM
Please support our research on data ownership, privacy and security in IoT tools by participating in the following survey: vub.fra1.qualtrics.com/jfe/form/SV_...
@wise.vub.ac.be #IoT #survey #VUB
@wise.vub.ac.be #IoT #survey #VUB
Reposted by Pieter Colpaert
🚨 Great news!Travel grants are available for #SEMANTiCS2025 in Vienna!
🎓 Students, early-career researchers & participants from ITC countries,this is your chance!
✈️ Don't miss the support from @goblin_cost & apply now!
👉 2025-eu.semantics.cc/page/travel_...
#KnowledgeGraphs #TravelGrant #SemanticWeb
🎓 Students, early-career researchers & participants from ITC countries,this is your chance!
✈️ Don't miss the support from @goblin_cost & apply now!
👉 2025-eu.semantics.cc/page/travel_...
#KnowledgeGraphs #TravelGrant #SemanticWeb
SEMANTICS-2025
2025-eu.semantics.cc
July 6, 2025 at 11:49 PM
🚨 Great news!Travel grants are available for #SEMANTiCS2025 in Vienna!
🎓 Students, early-career researchers & participants from ITC countries,this is your chance!
✈️ Don't miss the support from @goblin_cost & apply now!
👉 2025-eu.semantics.cc/page/travel_...
#KnowledgeGraphs #TravelGrant #SemanticWeb
🎓 Students, early-career researchers & participants from ITC countries,this is your chance!
✈️ Don't miss the support from @goblin_cost & apply now!
👉 2025-eu.semantics.cc/page/travel_...
#KnowledgeGraphs #TravelGrant #SemanticWeb